public class StudyPlan {
    public void doWhat(Week week){
        switch (week){
            case Mon:

            case Tues:

            case Wed:

            case Thurs:

            case Fri:
                System.out.println("努力写代码!");
                break;
            case Sat:
                System.out.println("休息日，陪女朋友一起看一场电影");
                break;
            case Sun:
                System.out.println("休息日、和同学们一起去体育馆打篮球");
                break;
            default:
                System.out.println("输出错误!地球上一周只有7天");

        }
    }

}
